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Python module for MCP23S17 for use with the Raspberry Pi

Some time ago I revised the hardware design of the ControlBlock and added test points for all major signals. The overall aim was to build a device for doing final system tests that are done before any single ControlBlock leaves for shipping. These system tests are written in Python. This post is about a Python module for the MCP23S17 to …

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Review: T962A Reflow Oven Controller Upgrade Package

A while ago I posted a review about the reflow-flow oven T-962A. As written in that post the T-962A has certain flaws: The heat is generated by IR heaters that do not distribute the heat evenly within the oven. This made the results of the soldering processes unreliable. Also, the responsiveness of the user-interface is not that good: Tuning the reflow …

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A Glance at the Cubox-i4

Recently, I got a grip to a Cubox-i4Pro. It is a mini computer with low power demand and quite a few interfaces that can be useful for all kinds of things. Also, it has enough computing power to be interesting for a wide variety of applications. In contrast to other development boards like the Raspberry Pi, the Cuboxi comes in …

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Reflow Oven T-962A – A Review

If you are tinkering, doing electronics, and/or soldering you might already have had contact with surface-mounted devices or, in short, “SMDs”. Of course, soldering some of these tiny parts by hand is possible. But there are really tiny SMD parts as well as packages that cannot be soldered by hand. In that situation, you can think about getting a reflow …

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Getting Started with the RetroPie GPIO Adapter

This is a guide that describes how to get started with the RetroPie GPIO Adapter. It is organized as a step-by-step guide: Starting with the sole components and the PCB the hardware assembly is described in the first part. The second part then guides you though the software topics by describing how to test the button and how to enable …

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Video of RetroPie GPIO Adapter

I have uploaded a short demonstration video that shows the RetroPie GPIO Adapter in action: The video shows the RetroPie GPIO adapter connected with two SNES controllers within a PetRockBlock PIE case. The current Raspbian distribution is running in the video with a RetroPie Setup Script installation. The controllers are polled by the gamecon GPIO module that can be installed …

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The RetroPie GPIO Adapter

UPDATE: The RetroPie GPIO Adapter is replaced by the ControlBlock, which supports more controller types and provides even a power switch functionality. The ControlBlock is has its own page here. If you want to use your Raspberry Pi for gaming you certainly want to attach some sort of controller(s) to it. Since the Raspberry comes with two USB ports one …

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Connecting SNES sockets to the Raspberry Pi: An assembly guide

UPDATE: For connecting original controllers from game consoles or arcade machines, there is now the ControlBlock. It supported various controller types and provides even a power switch functionality. The ControlBlock is has its own page here. In a previous post, I described my idea of a universal console with the Raspberry Pi. I presented, what I called, the SNESDev-RPi, which is …

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Pancake Board: Arduino-Compatible Minimum Configuration Board for ATMEGA168/328 with USB Connector

In my last post, I described a minimum configuration for an ATMEGA microcontroller, which is also used in the earlier Arduino boards, and I also explained how to program that microcontroller with an ISP. Here, I present a small all-purpose board that contains exactly that minimum configuration together with an USB-B connector. The USB connector has two purposes: First, it …

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